Smokejack



A. J. FILKINS.

SMOKEJACK.

APPLICATION FILED MAR-7,1919.

LMQfiGG. Patented Aug. 17,1920.

UNITEDSTATES PATENT OFFICE. 4

ARTHUR J. FIIAKINS, OF CHICAGO, ILLINOIS.

SMOKEJ' Specification of Letters Patent. Patented Aug. 17, 1920.

Application filed March 7, 1919. Serial No. 231,120.

ducting the exhaust smoke and gases from locomotives while in round houses, running sheds, or in the train sheds of depots or terminal buildings.

It is one of the primarybbjects of the invention to provide an automatically or draft operated cover for the upper and outer end 01? theexhaust pipe or stack of a chimney or smoke-jack of the described character.

It is a further object of the invention to provide improvements in the construction of the roof collar used for supporting a smoke-jack of the described, character.

It is a further object of the invention to provide certain improvements in the struc ture of the hood or smoke collector as usually provided at the lower end of the smoke-jack by which the same may be formed in part oi. overlapped gray iron or cast iron plates, the construction otthe hood being such that in partsoili the hood, as the vertical sides, light and inexpensive substitutes for gray or cast iron may be eniployed, such as chemically treated fireproof 1 wood and the whole secured together and suspended in a substantial. manner from the root collar, by which the entire device is supported in relation to the roof or top of the building upon which the device is installed.

Other objects of the invention will appear from the following description which is directed to the preferred embodiment of the invention shown in the drawings form ing a part of this specification, and finally pointed out more particularly. in the appended claims.

In the said drawings, Figure 1 is a side elevational view of the complete device as in stalled upon the roof of a round house, the support for the device upon the roof a round house being shown also in section.

Fig. 2 is a view similar to Fig. 1, being taken at right angles to the View of Fig. 1 and showing an end elevation of the device with the roof supporting means in section as in Fig. 1. i I

Fig. 3 is a top plan view of the-root collar plate, and Fig. is an enlarged detail sectional view takenon line 44l Fig. 3.

The reference charatcr 10 indicates generally the roof or top covering of the round house or other building on which the smoke jack embodying the invention is supported in any desired or usual manner as upon the roof timbers 11. 12 is an extension formed on the roof of anysuitable material, being adapted to furnish a direct support or foundation upon which may be carried the collar plate designated by the reference character 15, for supporting the smokej acka a It is found ,that in the use especially of certain forms of bituminous coal, as used in firing locomotives, that there is an inju rious amount of acid suspended in the ex haust gases. Gray or cast iron is one of the best known cheapmetals for withstanding the corrosive elli'ect of such acids, and consequently I prefer to construct the me tallic parts otmy smoke-jack or chimney of gray or cast iron, particularly where there is any liability of the} parts of the de vice becoming exposed to the acid. action of the exhaust escaping by way ofthe device. Consequently, I'prefer to construct the main pipe portions 16 and 17 above the roof collar 15, of gray iron, one of the pipe sectionsbeing bell-mouthed or enlarged at one end as indicated at 17 to cooperate with the adjacent section of the pipe, the pipe sections being locked together by suitable pierced lugs through which are passed the retaining bolts 18. 16 may be slightly bell-mouthed or enlarged as at 16 to cooperate withthe upwardly extending annular rib 15 around the opening 19 in the collar plate 15.

Below the collar plate 15 the smokepipe or stack is extended downwardly by short section 20 formed with radial lugs 21 prefcrably on diametrically opposite sides which are pierced and take the retaining bolts 22 i'or securing the pipe section 20 to the roof collar plate. As stated the pipesections 17 and 16, the collar plate 15, and the short section 20 are preferably formed of gray or cast iron, and to the lower extremity of the pipe section 20. there is secured an extended The lower seeti on or downwardly extending section 23, also apparent from end elevational view, Fig. 2.

The diverging ends of the hood are preferably formed of two or more gray iron plates 24, 25,Wl1l0l'l may be secured together by suitable retaining means as by rivets or bolts indicated by reference character 26. I prefer to form the substantially vertical sides of the hood below the section 23 of tongue and grooved wood strips, which are prefe ably treated to render same as nearly the proof as possible. The end sections 24, of the hood may be formed with the right angular lateral edges: as indicated at 24" and 25 and pierced to take suitable retaining means as screws or bolts for securing the wood strips thereto, said strips being designated by the reference character 30. On one of the series of plates 24 or 25, there are formed lugs 25 which are pierced and in which are secured the ends of lateral stay rods or tie rods 31 for anchoring the series of end plates 24, 25 together, and preventing any tendency of the metallic ends of the hood to warp or spread apart from the wood sides. Obviously, when the sides of the hood are constructed of wood, the weight of the hood to be supported from theroof collar 15, will be much lessthanwhere the entire hood is made of gray or cast iron. Ordinarily, it is necessary to provide a hood several feet in lengthto allow some latitude in positioning a locomotive stack thereunder and obviously the elongated diameter of the hood will extend in the direction of travel of the locomotive since the position of the track below will determine the position of the hood latorally. This will result in a hood of considerable weight in view of its necessarily extended length, and in order to further secure and safely suspend the hood from the collar plate 15, I'provide a plurality of openings in the collar plate 15 as indicated strips 30 of tlie hood.

at 15 through which are passed the stay rods 33, the lower ends of which are secured to lugs on anchor plates 34, the latter being secured in any desired manner to the side It is preferred that the upper ends of the rods be screwthreaded and provided with adjusting nuts on the upper side of the collar plate 15.

The construction of the collar plate 15 is of importance in order to properly perform its functions in supporting the smoke-jack properly upon the roof of the building or on the special collar "or extension 12, provided for cooperating with same. The plate 15 is accordingly provlded with a downwardly pro ecting peripheral flange 1.3 atfording a cover or joint over the roof collar 12, and in coiiperation with the upwardly extending pipe flange l5, insuring that any water due to condensation or the elements, will be shed from the top thereof upon the building.

Another important feature of my invention resides in the special constriu-tion of the collar plate 15 by which destructive fumes not entirely cared for upon the inside of the hood of the smoke-jack, and which have a tendency to accumulate below the collar plate 15, and between the roof collar 12 and the pipe section 2t), are vented from the opening between the pipe and the roof below the collar plate to the outside atmosphere. This result is obtained by the provision of a plurality of curved slots 15 which are completely surroinulcd by raised edges 15, designed to prevent the passage downwardly through slots 15 of any water from the upper and outside of the collar plate 15.

I will now describe myautomatic damper, or pipe controlling device. Near the top of the upper pipe section 17 is mounted a rigid upright 40 to the upper end of which is pivoted at 41, an extended arm l2, one extremity of which carries a cover 43 adapted to close the upper end of the pipe. The arm 42 is adapted to have a swinging movement so as to lift the cover 43 to clear the upper end of the pipe to permit of a, normal draft of air and gas therethrongh when desired, and the lever 42 including the adjustable cover 43 carried thereby, is controlled or counterbalanced by weight 44 on the free end thereof beyond the pivot 41, and this weight 44 is made adjustable by suitable means as the set screw 45. By moving the weight 44 as may be necessary along the arm 42 and securing it in its adjusted position the damper or cover 43 may be adjusted to normally close the top of the pipe and yet be so nearly counterbalanced by the weight 44 that any pronounced upward draft of hot air, gases or smoke passing through the pipe will cause the counterweight to raise the cover or damper to the open position as long as there are gases to be discharged from the interior of the building. The importance of this automatically operating damper or cover for the smoke-jack will be apparent, since it will be seen that upon the cessation of an outgoing discharge the cover will overbalance the weighted arm and the pipe will :uitomatically be closed and a down draft prevented. Down drafts are to be avoided because they carry cold air not desired into a roundhouse in such quantities as to make the heating of the interior impractical or impossible. It has been the Lasa na practice heretofore to require hand operated dampers to be installed on all new smokejacks. In practice employees forget to close them upon the removal of an engine from a given stall, or the damper operating device sometimes becomes misplaced or inoperative with the result that the smoke-'ack passage way is commonly left open. he hand operatingcable 46 may be providedto operate the cover when there is no forced outer draft, or when the device is out of adjustment. In the use of my improved structure it will be seen that the chimney of the device is normally kept closed, and Will be opened automatically without any attention from an operator.

At 48, 49 I show troughs adapted to collect any water of condensation from the inside ,walls of the smoke-jack, and to dis-,

interior of the building, an integral cover for the outer and discharge end of the said pipe, and a counterbalance device by;which said cover is supported in position to normally close the outer or discharge end of the pipe.

2. In a smoke-jack or chimney forround houses and the like, the combination with a vent pipe adapted to extend through the roof ofthe building from the interior to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lowerextremity of the pipe on the exterior of the building, a cover forthe outer and discharge end of the said pipe, and a counterlnilance device by which said cover is supported in position to normally close the outer or discharge end ofthe pipe,the said counterbalance device being so adjusted that the friction or pressure of heated gases being dischargedupwardly through the vent pipe will cause the counterbalance device to elevate the cover to open the discharge end of the pipe but will permit the normal. elosing of the same upon the cessation of the discharge of said gases through the pipe.

In a smoke-jack or chimney for round houses and the like, the combination with a pipe adapted to extend through the roof of the building from the interior to the exterior thereof, of means for collecting and conveying the exhaust; of a locomotive to the lower extremity of the pipe on the in terior of the building, a cover for the outer anddischarge end of said pipe, means for operably connecting the said cover to open and closethe outer and discharge end of the said pipe, and a countcrbalanre device related to said cover operating means whereby the cover willunormally close the outer and discharge end of the pipe but will open upon the passage of heated air or gases upwardly through the pipe.

4. In a smoke-jack or chimney for round. houses and the like, the combination with a pipe adapted to extend through the roof of the building from, the interior to the exterior thereof, a movable cover for the outer and discharge end of the said pipe and means foradjustably securing the said cover in relation to the pipe comprising a counterbalance device adapted to support the covernormally in position to close the upper discharge endof the pipe, but being adapted to be liftedabove the top of the pipe by the combined lifting effect of the pressure of heated air or gases passing upwardly through the pipe when added to the lifting effect of the counterbalance de' vice. i

5. Ina smoke-jack or chimney for round houses and the like, the combination with a pipe adapted to extend through the roof of the building from the interior to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior of the building, a cover for the outer and discharge end of the pipe, the said cover i to normallyclose the upper end of thepipe but to be lifted by a rising current of heated air or gases passing through the said )1. 3e. i 1 In a smoke-jack or chimney for round houses and the like, the combination with a vent pipe adapted to extend through the roof of the building from the interior of the building to the exterior thereof, of means for collecting and conveying the exhaust ofa locomotive to the lower extremity ofthe pipe on the interior of the building, a cover for the outer'and discharge end of the said-pipe, a standard on the exterior of the pipe adjacent the discharge end thereof, a lever 1 arm pivotally connected. withrthe standard and operatively connected with the cover, and a counterbalance weight secured to the said lever.

7. In a smoke'yjackor chimney for round houses and the like, the combination with a vent pipe adapted to extend through the roof of the building from the interior of the building to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior of the building, a cover for the outer and discharge end of the said pipe, a standard on the pipe adjacent the discharge end thereof, a lever arm pivotally connected withthe standard and operatively connected with the cover, and an adjustable counterbalance weight secured to the said lever.

8. In a smoke-jack or chimney for round houses and the like, the combination with a vent pipe adapted to extend through the roof of the building from the interior of the building to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior of the building. a cover for the outer and discharge end of the said pipe, a standard on the pipe adjacent the discharge end thereof, a lever.

arm pivotally connected with the standard and operatively connected with the cover, an adjustable counterbalance weight secured to said lever, and a flexible connection extending from said iever through the roof of the building to which the smoke-jack or chimney is attached to the interior ofthe adjacent exhaust collecting means.

9. In a smoke-jack or chimney for round houses and the like, the combination with a vent pipe adapted to extend through the roof ofth'e building from the interior to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior of the building, there being an opening in the roof o f the building larger than the normal diameter of the plpe for the passa e of the said )i )e therethrou 'h a collar and exterior of the building on the exterior of the pipe, and means for preventing the downward passage of water through the said plate comprisingupwardly pro ecting continuous ribs surrounding the said openings in said plate.

10 In a smoke-jaek-or chimney for round houses and the like, the combination with a vent pipe adapted to extend through the roof of the building from the interior to the exterior thereof, of means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior of the building, and a collar plate secured to the pipe to support the weight thereof in relation to the building roof, there being a dowm ardly projecting outer peripheral flange on the cover plate and a plurality of openings through the said plate, each o I? said openings being surrounded by continuous upwardly projecting ribs adapted to prevent the passage of liquids :u-ciunulating upon the upper side oi? the plate through the said openings therein to the interior oi the building.

11. In a smoke-jack or chimney for round houses and the like, the combination with a pipe adapted to extend through the root of the building from the interior to the exterior thereof, a collar plate secured to the pipe, and means for collecting and conveying the exhaust of a locomotive to the lower extremity of the pipe on the interior oi the building comprising a metallic section sccured. to the lower end oi. the pipe and having two of its opposite sides diverging downvardly, a plurality of metallic extension plates secured to the downwardly diverging walls of the metallic pipe section. the side edges of the said plates being connected by comparatively weak or fragile strips of suitable fire-proof material, stay rods cow necting the downwardly diverging plates of the hood near the lower extremity of each series thereof and tending to hold said cxtension platcs in their normal positions in relation to the ends oi said strips of lire proo; material, and a plurality oi supporting rods secured to the side walls of the hood and extending thence to the said collar plate whereby to support the side walls of the hood from the collar plate.

12. in a smoke-jack or chimney for round houses and the like, the combination with a vent pipe adapted to extend from the interior oi the building to the exterior thcrcoi'. said pipe being supported upon the roof of the building by suitable means connecting same with said root, a metallic extension of the pipe section supported by and below the collar plate and having two of its sides diverging downwardly, a composite gas and smoke collecting device or hood 'l'orming a continuation of said. metallic extension of the pipe and comprising a plurality oi cud and side pieces or plates secured together. and a plurality oi supporting rods each attached at its extremities to the opposite end plates of the hood to prevent the separation of said end plates from the side plates of the hood.

In testimony whereof I have signed my name to this specification on this 26th day of February, A. D. 191.).

ARTHUR J. FILKIN S.

ill) 

